<template>
  <div class="login_container">
    <div class="login_box">
      <!--头像区域-->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
<!--        登陆表单-->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
<!--        用户名-->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
<!--        密码-->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-lock" type="password"></el-input>
        </el-form-item>
<!--        按钮区域-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLogin">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
  export default {
    name: 'Login',
    data() {
      return {
        // 登录表单的数据绑定对象
        loginForm: {
          username: 'admin',
          password: '123456',
        },
        //表单验证规则对象
        loginFormRules: {
          //验证用户名是否合法
          username: [
              { required: true, message: '请输入登陆名称', trigger: 'blur' },
              { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' },
            ],
          //验证密码是否合法
          password: [
            { required: true, message: '请输入登陆密码', trigger: 'blur' },
            { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' },
          ],
        },
      }
    },
    methods: {
      resetLogin() {
        this.$refs.loginFormRef.resetFields();
      },
      login() {
        this.$refs.loginFormRef.validate(async valid => {
          if (!valid) return;
          const {data:res} = await this.$http.post('login', this.loginForm);
          if (res.meta.status !== 200) return this.$message.error('登录失败');
          this.$message.success('登录成功');
          window.sessionStorage.setItem('token', res.data.token);
          await this.$router.push('/home')
        })
      }
    }
  }
</script>

<style lang="less" scoped>
  .login_container {
    background-color: #2b4b6b;
    height: 100%;
  }
  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    .avatar_box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #fff;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }


</style>